A man paints a woman's face during Carnival celebrations along Ipanema beach on February 18, 2012 in Rio de Janiero, Brazil. Carnival is the grandest holiday in Brazil, annually drawing millions in raucous celebrations culminating on Fat Tuesday before the start of the Catholic season of Lent which begins on Ash Wednesday. Police strikes in Salvador and Rio de Janiero in recent weeks threatened Carnival and raised questions about the country's preparedness to host the upcoming 2014 World Cup and 2016 Summer Olympics. (Photo by Mario Tama/Getty Images)

Members of Rocinha dance during the samba school's parade group A at Rio de Janeiro's carnival on February 18, 2012 in Rio de Janeiro, Brazil. Carnival is the biggest and most popular celebration in Brazil, running all over the country from February 17 to 21.(Photo by Buda Mendes/LatinContent/Getty Images)

Dancers perform the traditional "Diablada" or Dance of the Devils during Carnival celebrations in Oruro, Bolivia, Saturday Feb. 18, 2012. The Carnival in Oruro always opens with the "Diablada," a ritual dance of good and evil that has remained unchanged since colonial times. Next to Rio, the mountain mining town is host to the largest carnival in South America with an estimated participation of 30,000 dancers and up to 150 marching bands. (AP Photo/Juan Karita)

Revelers give beer to a homeless man during the Cordao da Bola Preta carnival parade in downtown Rio de Janeiro, Brazil, Saturday Feb. 18, 2012. Thousands of people gathered Saturday to march with one of Rio's most popular and traditional blocos or parade groups, created in the early 1900's and believed to be named for a beautiful woman wearing a black and white polka-dress. (AP Photo/Victor R. Caivano)

Revelers dance during the Cordao da Bola Preta carnival parade in downtown Rio de Janeiro, Brazil, Saturday Feb. 18, 2012. Thousands of people gathered Saturday to march with one of Rio's most popular and traditional blocos or parade groups, created in the early 1900's and believed to be named for a beautiful woman wearing a black and white polka-dress. (AP Photo/Victor R. Caivano)

Dancers parade on the first day of Carnival celebrations in Oruro, Bolivia, Saturday Feb. 18, 2012. Next to Rio de Janeiro, the mountain mining town is host to one of the largest carnivals in South America with an estimated participation of 30,000 dancers and up to 150 marching bands. (AP Photo/Juan Karita)

A marching band parades on the first day of Carnival celebrations in Oruro, Bolivia, Saturday Feb. 18, 2012. Next to Rio de Janeiro, the mountain mining town is host to one of the largest carnivals in South America with an estimated participation of 30,000 dancers and up to 150 marching bands. (AP Photo/Juan Karita)

A performer waves from the top of a float during carnival celebrations in Barranquilla, Colombia, Saturday Feb. 18, 2012. The UNESCO declared Barranquilla's carnival a "Masterpiece of Oral and Intangible Heritage of Humanity" in 2003. (AP Photo/Fernando Vergara)

A float with figures depicting French soccer player Zinedine Zidane and U.S. President Barack Obama parades during the 128th edition of the Nice Carnival, Saturday, Feb. 18, 2012, in Nice, southern France. This year the carnival is celebrating the theme "King of Sport." (AP Photo/ Lionel Cironneau)

The King and the Queen of the Nice Carnival 2012's floats parade during the 128th edition of the Nice Carnival, Saturday, Feb. 18, 2012, in Nice, southern France. The carnival celebrates the theme "King of sport." (AP Photo/ Lionel Cironneau)

Assistants tape up a devil mask of a participant before the carnival celebrations in Madrid Saturday, Feb. 18, 2012. The Carnival, which takes place across Spain just before Lent, is believed to owe its origins to the pagan festivals. (AP Photo/Paul White)